.banner{
    height: 500px;
}
.container .col-3 h3{
    font-weight: bold;
    font-size: 20px;
}
.container .col-md-3 p {
    height: 40px;
}
.card-title{
    font-size: 1.35rem;
}
footer p{
    font-size: 15px;
}
footer .col-md-3 ul a{
    font-size: 14px;
    color: slategray;
    margin-left: 3px;
}
@media (max-width: 600px) {
    .banner{
        height: 230px;
    }
}